My new project: GaN amp and LLC+SinchroRec PSU

[drMordor]

My new project: GaN amp and LLC+SinchroRec PSU

Amp have full differential structure
Amp- 400 4 ohm, 200 8 ohm nominal power, 600 and 300 maximum power.
Amp have overload, overtemperature protections.
With my PSU have DC protection.

PSU LLC and sincrorectifier.

 

[daniboun]

As usually great project ��
Looking forward to try it

 

[TNT]

Hallo Dr!

Full diff should mean a very quite ground - do you for-see this?

It can be important as what is feeding the signal input to the amp will most probable share this ground and if that is "rocking", it will rock too...

What is your goal with this amp over the last ones?

//

 

[drMordor]

Hi TNT!
I'm interested in doing something new.
I expect the amplifier to have very low THD+N.

 

[drMordor]

As usually great project ��

Thanks))))

 

[Reactance]

My new project: GaN amp and LLC+SinchroRec PSU

Amp have full differential structure
Amp- 400 4 ohm, 200 8 ohm nominal power, 600 and 300 maximum power.
Amp have overload, overtemperature protections.
With my PSU have DC protection.

PSU LLC and sincrorectifier.

Thank you for keeping the forum alive with good content, the last year all we seeing is copy paste evaluation pcb chip designs.

 

[drMordor]

These are only files, it will be interesting when it will all be in hardware

 

[turion64]

I can't imagine anything sounding better than the Class D i just bought from you.

Pete

 

[drMordor]

Hi Pete!
I will try to surprise you one more time))))

 

[TNT]

Cool!

How about doing mono board / mono version. Is there a big overhead? A stereo build could still share one smps I suppose.

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[drMordor]

One board - one channel. Up to 200W for stereo need one PSU
For higher - PSU per cannel.

 

[stretchneck]

Nice work

 

[drMordor]

Thanks)

 

[TNT]

Nice!

Are you geared up to be able to take some basic measurements?

The only thing needed is a decent/good usb sound card and a dummy load - the rest is free.... (REW!)

//

 

[drMordor]

I ready for this, have EMU0204USB and 80w resistors 4.7ohm)))

 

[TNT]

Super!!

//

 

[TNT]

Found this - not sure if its worth it?

EMU0204 mods for FFT measurements

How do one attenuate the voltage sving when measuring power amps or the input will be saturated?

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[drMordor]

Thanks! This is very helpful!

 

[chips666]

Nice project drMordor

Specs will be better for sure but will it be audible?

Still enjoying your TPA3255 "all-in-one" black pcb

Rgds
Ronny

 

[drMordor]

Thanks Ronny))
Need assemble and measure.